All names: Gaia DR2 982729822026188928, GALEX J073833.2+512845, LAMOST J073833.37+512844.5, LAMOSTJ073833.37+512844.5, UCAC4 708-047234, 2MASS J07383338+5128444, Gaia DR3 982729822026188928
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 07 38 33.38 | 07 38 33.39 (0.03) | ||
| Declination | 51 28 44.51 | 51 28 44.45 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 29102.0 (290) | ||
| log(g) | [cgs] | 5.60 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.55 (0.06) | 0.59 (0.04) | |
| Distance | [pc] | 1802.78 (202) | 1684.07 (125) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -8.556 (0.08) | -8.64 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.296 (0.07) | -3.215 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.46 (0.1) | |||
| V magnitude | 15.64 (0.07) | |||
| R magnitude | 15.80 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.97 (0.09) | 15.97 (0.09) | ||
| H magnitude | 15.89 | |||
| K magnitude | 15.93 (0.3) | 15.93 (0.3) | ||
| u magnitude | ||||
| g magnitude | 15.47 (0.07) | |||
| r magnitude | 15.75 (0.1) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.63 (0.001) | 15.62 (0.003) | ||
| BP magnitude | 15.47 (0.005) | |||
| RP magnitude | 15.79 (0.005) | |||
| Pan g magnitude | 15.50 (0.005) | |||
| Pan r magnitude | 15.82 (0.003) | |||
| Pan i magnitude | 16.13 (0.002) | |||
| Pan z magnitude | 16.36 (0.006) | |||
| Pan y magnitude | 16.50 (0.003) | |||
| E(B-V) | 0.076 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.